MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as Pdf.Phishing.Trojan. The file contains numerous links pointing to compromised CMS upload directories and disposable hosting, suggesting a link farm designed to redirect users to malicious content. The primary attack pattern involves directing users to external, potentially compromised, URLs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9994
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL http://geoodwierty.pl/files/file/benilijoro.pdf
- https://www.toptalentusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b2a12e4df9c---vitifaguga.pdf
- http://fw-simple.com/uploads/files/25405056854.pdf
- http://trenermichal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16080eebbe4571---87223126758.pdf
- https://maugli24.ru/wp-content/plugins/super-forms/uploads/php/files/adad3198b99efa101e8f95cdaa96f079/kutazefowomuvupuramadovaw.pdf
- http://okwmd.com/upload/fckeditor/file/rumemezutumodekaguvabewev.pdf
- http://kasargod.net/uploads/file/vunuxegiwamasotejag.pdf
- https://monacollection.ua/wp-content/plugins/super-forms/uploads/php/files/76ebebfdd313b799e4970be7e0ceb8b5/zolawedevala.pdf
- http://wirheiraten.de/images/file/biwadezi.pdf
- https://www.mixedclass.com.au/wp-content/plugins/super-forms/uploads/php/files/mq5v2uhm6vdlgk3tea3dd3s7ab/wudoneze.pdf
- https://cal.lighting/wp-content/plugins/super-forms/uploads/php/files/fe0e9cb798bb3827b409171237664825/57205597248.pdf
- https://etadelloro.it/images/file/81975385759.pdf
- http://www.sg-callenberg.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609192aa3bd85---jajivurumub.pdf
- https://braviengenharia.com.br/wp-content/plugins/super-forms/uploads/php/files/g14lsrsbvmss659vq0srnppjgj/niligopuleb.pdf
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/16075159e0b891---45036258997.pdf
- https://www.hediyevideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2d7f3c20ff---vivopozuf.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083e56e6670b---pezedekotedorodozibovudas.pdf
- http://carneslaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/ronobaluva.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=persona+2+eternal+punishment+psp+iso
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c18b.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC18B | 16792 bytes |
font_01_sfnt_off0000d9a2.bin580863a7cef1c02f7e3936e3371d657f2e59495a1c25e399165243d832aad0f4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD9A2 | 10736 bytes |
font_02_sfnt_off0000f228.bin44d49ad6c374120c6a17c0b5cd723a9534bbe219b60beb6c207aeeb12731a254 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF228 | 17652 bytes |
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